What is the ruling on saying "True is the Mighty Allah" at the end of recitation?

Question : What is the ruling on the one who says "True is the Mighty Allah" at the end of the recitation?

Answer : There is no doubt that saying "True is the Mighty Allah" is a great word and praise of Allah the Exalted for His truthfulness. It is, therefore, a remembrance of Allah and worship of Allah Mighty and Majestic. All acts of worship are based on following the Sunnah, not on desire and personal opinion. If it becomes clear that saying "True is the Mighty Allah" is an act of worship by which one draws near to his Lord, then we say that it is not prescribed for a person to say "True is the Mighty Allah" when he finishes his recitation, because the Prophet (peace and blessings be upon him) did not say "True is the Mighty Allah" when he finished his recitation, nor did the Companions (may Allah be pleased with them) say "True is the Mighty Allah" when they finished their recitation. Therefore, what the believer should do when he finishes his recitation is simply to end it and not say "True is the Mighty Allah." Ibn Mas'ud (may Allah be pleased with him) recited to the Prophet (peace and blessings be upon him) what he had recited from Surat al-Nisa, and then the Prophet (peace and blessings be upon him) said to him, "That is enough for you." Ibn Mas'ud stopped at the words of the Messenger (peace and blessings be upon him) and did not say "True is the Mighty Allah," and the Prophet (peace and blessings be upon him) did not tell him to say "True is the Mighty Allah."
Therefore, what a person should do is not to say that. However, if things occur that bear witness to something in the Qur'an, there is no harm in a person saying, "Truthful is Allah the Exalted," and citing the verse. For example, if he says to a person whom Allah has tested with water, and he became preoccupied with it and turned away from obeying Allah, he might say, for instance, "Truthful is ." This is permissible because he is saying it to affirm the noble verse in an incident to which the verse bears witness.